@sktsec well its the general section, maybe its fine to ask such a thing.
But: EAs are run locally, the source code (the strategy) will never reach the broker. And even if the broker gets the source code, 99.99999% of EAs are pure garbage. No broker in the world can afford to hire 10,000 developers and financial analysts to go through the millions of EAs, finding the remotely good ones. It will never be good business for the broker.